Anti-shaking fixing frame for air-drop device of unmanned aerial vehicle

By setting a snap-fit ​​structure between a base plate and a fastening plate at the bottom of the drone, combined with spring support and electromagnet attraction and fixation, the problems of strap slippage and long-term power supply of electromagnets are solved, thereby improving stability and reducing energy consumption.

CN223962268UActive Publication Date: 2026-03-03SHANGHAI JIANGTUO ZHIHANG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In existing drone airdrop devices, the straps become unstable due to swaying and slipping, and the electromagnets are powered for extended periods, increasing the burden on the drone during transport.

Method used

A base plate and multiple connecting rods are installed at the bottom of the drone, which are fastened to the main body of the drone by a fastening plate to improve stability; during airdrop, springs support the airdrop box, and an electromagnet is activated to engage and fix it during airdrop, with power supplied only when it is released.

Benefits of technology

This improves stability and reduces the power consumption of the electromagnet and the transportation burden on drones.

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Abstract

The utility model discloses an unmanned aerial vehicle air-drop device anti-shake fixing frame, and belongs to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle air-drop device anti-shake fixing frame comprises an unmanned aerial vehicle main body and a bottom plate detachably fixed at the bottom end of the unmanned aerial vehicle main body, and a plurality of connecting rods are fixed on the bottom plate in a rectangular array; a fastening plate clamped to the top end of the unmanned aerial vehicle body is fixed to the top end of the connecting rod, mounting parts are fixed to the bottom end of the connecting rod, an air-drop box is inserted between the multiple mounting parts in a matched mode, and connecting blocks clamped to the air-drop box are elastically inserted to the side walls of the mounting parts. According to the anti-shaking fixing frame for the air-drop device of the unmanned aerial vehicle, after the fastening plate is completely installed, the clamping part is clamped to the top end of the unmanned aerial vehicle body, the installation stability of the bottom plate is improved, the situation that the bottom plate shakes is avoided, the air-drop box is conveniently supported, electricity is supplied to the electromagnet only when the air-drop box is released, and the anti-shaking effect is achieved. The power consumption of the electromagnet and the transportation burden of the unmanned aerial vehicle are greatly reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to an anti-sway fixing frame for UAV airdrop devices. Background Technology

[0002] Drone airdrop technology is currently in a phase of rapid development, showing great potential and practical application value, particularly in logistics and military resupply. However, currently, drones capable of airdropping are generally specially designed, with complex structures, high operating costs, and limited application scenarios. While ordinary drones are cheaper, they do not possess airdrop capabilities.

[0003] Patent application number 202421220461.5 discloses a drone airdrop device, comprising: a drone body, including a fuselage, arms, and landing gear; a base, located below the fuselage, with a strap on one side and a fixing component on the other side, the fixing component including a retaining pin, a mounting base, and a limiting member, the mounting base being fixedly connected to the base, the retaining pin being rotatably mounted on the mounting base, the retaining pin having a through hole, the strap passing around the fuselage body and being inserted into the through hole, and the limiting member being used to lock and limit the retaining pin; a control component, including a main controller, a battery, an electromagnet, and a camera; and an airdrop box, with a magnetic attraction component on the top of the airdrop box, the magnetic attraction component and the electromagnet magnetically attracting each other to fix the airdrop box.

[0004] The above technical solution uses a single-sided strap to keep the suction mechanism fixed to the drone. However, the strap may slide on the surface of the drone due to the drone's shaking, resulting in poor stability of the strap fixation. At the same time, the above technical solution requires the electromagnet to be in an active state for a long time and to bear the weight of the entire cargo, which requires a large number of batteries to power the electromagnet, greatly increasing the transportation burden of the drone. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an anti-sway fixing bracket for drone airdrop devices. This anti-sway fixing bracket aims to solve the problem that in existing technologies, the straps may slide on the surface of the drone due to the drone's shaking, resulting in poor stability of the strap fixing. At the same time, the above-mentioned technical solutions require the electromagnet to be in an active state for a long time and bear the weight of the entire cargo, which leads to the need to equip a large number of batteries to power the electromagnet, greatly increasing the transportation burden of the drone.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a drone airdrop device anti-sway fixing frame, which includes a drone body and a base plate detachably fixed to the bottom of the drone body. Multiple connecting rods are fixed in a rectangular array on the base plate. The top of each connecting rod is fixed with a fastening plate that engages with the top of the drone body, and the bottom of each connecting rod is fixed with a mounting part. An airdrop box is inserted into each of the multiple mounting parts, and a connecting block that engages with the airdrop box is elastically inserted into the side wall of the mounting part.

[0009] When using this technical solution, a base plate is installed at the bottom of the drone body, and multiple connecting rods and fastening plates are fixed on the base plate. During installation, the multiple fastening plates are sleeved on the drone body, and the bottom end of the drone body abuts against the inclined end of the locking part, thereby squeezing the fastening plates to cause elastic deformation. After the fastening plates are fully installed, the locking part is locked with the top end of the drone body. By sleeved on the drone body with multiple fastening plates, the stability of the base plate installation is improved, and the base plate is prevented from shaking. An airdrop box is inserted between multiple mounting parts. The spring in the telescopic hole pushes the connecting block to insert into the connecting hole on the side wall of the airdrop box. The connecting block supports the airdrop box. At the same time, when airdropping, the electromagnet is activated to attract and fix the magnetic metal plate on the slide rod, thereby causing the connecting block to retract into the telescopic hole, which facilitates the support of the airdrop box. The electromagnet is powered only when the airdrop box is released, which greatly reduces the power consumption of the electromagnet and the transportation burden of the drone.

[0010] Preferably, support seats are fixed on both sides of the bottom end face of the drone body, and a snap-fit ​​part is fixed on the top of the fastening plate to abut against the top of the drone body.

[0011] Furthermore, the top of the side wall of the airdrop box has multiple connecting holes arranged in a rectangular array, and one end of the connecting block extending out of the mounting part is inserted into the connecting hole.

[0012] Furthermore, one end of the mounting part is provided with a telescopic hole, and the other end of the mounting part is embedded with an electromagnet.

[0013] Furthermore, the mounting part is slidably inserted into the telescopic hole, and an anti-detachment part is fixed on the mounting part to abut against the inner wall of the telescopic hole.

[0014] Furthermore, a spring is embedded in the telescopic hole, and a sliding rod is fixedly installed on the side wall of the anti-detachment part.

[0015] Furthermore, the slide bar is embedded in the spring, and the side wall of the slide bar is fixed with a magnetic metal plate that is attracted and fixed to the electromagnet.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model features a base plate at the bottom of the drone body, with multiple connecting rods and fastening plates fixed on the base plate. During installation, the fastening plates are fitted onto the drone body, and the bottom of the drone body abuts against the inclined end of the snap-fit ​​part, thereby squeezing the fastening plates to cause elastic deformation. After the fastening plates are fully installed, the snap-fit ​​part snaps against the top of the drone body. By fitting multiple fastening plates onto the drone body, the stability of the base plate installation is improved, and the shaking of the base plate is avoided.

[0019] By fitting and inserting airdrop boxes between multiple mounting parts, springs in the telescopic holes push connecting blocks into connecting holes on the side walls of the airdrop boxes, supporting the airdrop boxes through the connecting blocks. At the same time, during airdrop, the electromagnet is activated to attract and fix the magnetic metal plate on the slide rod, thereby causing the connecting blocks to retract into the telescopic holes, facilitating the support of the airdrop boxes. Power is only supplied to the electromagnet when the airdrop boxes are released, greatly reducing the power consumption of the electromagnet and the transportation burden of the drone. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the UAV of this utility model;

[0023] Figure 3 This is a schematic diagram of the airdrop box structure of this utility model;

[0024] Figure 4 This is a cross-sectional view of the mounting section of this utility model.

[0025] The labels in the attached diagram are as follows: 1. Drone body; 2. Airdrop box; 3. Support base; 4. Fastening plate; 5. Mounting part; 6. Base plate; 7. Connecting hole; 8. Connecting rod; 9. Connecting block; 10. Anti-detachment part; 11. Spring; 12. Magnetic metal plate; 13. Electromagnet; 14. Snap-fit ​​part; 15. Telescopic hole; 16. Slide rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This specific embodiment is an anti-sway fixing frame for a drone airdrop device, and its structural diagram is shown below. Figure 1 and Figure 2 As shown, the anti-sway fixing frame of the drone airdrop device includes a drone body 1 and a base plate 6 that is detachably fixed to the bottom of the drone body 1. Multiple connecting rods 8 are fixed in a rectangular array on the base plate 6. The top of the connecting rod 8 is fixed with a fastening plate 4 that is snapped into the top of the drone body 1, and the bottom of the connecting rod 8 is fixed with a mounting part 5. The multiple mounting parts 5 are fitted together with an airdrop box 2, and the side wall of the mounting part 5 is elastically fitted with a connecting block 9 that is snapped into the airdrop box 2.

[0028] Both sides of the bottom surface of the drone body 1 are fixed with support bases 3. The top of the fastening plate 4 is fixed with a snap-fit ​​part 14 that abuts against the top of the drone body 1. The top of the side wall of the airdrop box 2 has multiple connecting holes 7 in a rectangular array. One end of the connecting block 9 protruding from the mounting part 5 is inserted into the connecting hole 7. One end of the mounting part 5 has a telescopic hole 15, and the other end of the mounting part 5 is embedded with an electromagnet 13. When the base plate 6 is installed, multiple fastening plates 4 are sleeved on the drone body 1. The bottom of the drone body 1 abuts against the inclined end of the snap-fit ​​part 14, thereby squeezing the fastening plate 4 to undergo elastic deformation. After the fastening plate 4 is fully installed, the snap-fit ​​part 14 is snapped against the top of the drone body 1. The multiple fastening plates 4 sleeved on the drone body 1 improve the stability of the base plate 6 installation.

[0029] like Figure 3 and Figure 4 As shown, the mounting part 5 is slidably inserted into the telescopic hole 15, and the mounting part 5 is fixed with an anti-detachment part 10 that abuts against the inner wall of the telescopic hole 15. A spring 11 is embedded in the telescopic hole 15, and a slide rod 16 is fixedly installed on the side wall of the anti-detachment part 10. The slide rod 16 is embedded in the spring 11, and a magnetic metal plate 12 that is attracted and fixed to the electromagnet 13 is fixed on the side wall of the slide rod 16. The spring 11 in the telescopic hole 15 pushes the connecting block 9 into the connecting hole 7 on the side wall of the airdrop box 2. The connecting block 9 supports the airdrop box 2. At the same time, when airdropping, the electromagnet 13 is activated to attract and fix the magnetic metal plate 12 on the slide rod 16, thereby causing the connecting block 9 to retract into the telescopic hole 15 and support the airdrop box 2.

[0030] Working principle: When using the device of this technical solution, multiple fastening plates 4 are sleeved on the drone body 1 during installation of the base plate 6. The bottom end of the drone body 1 abuts against the inclined end of the snap-fit ​​part 14, thereby squeezing the fastening plates 4 to undergo elastic deformation. After the fastening plates 4 are fully installed, the snap-fit ​​part 14 snaps into the top end of the drone body 1. The multiple fastening plates 4 sleeved on the drone body 1 improve the stability of the base plate 6 installation. The airdrop box 2 is inserted between the multiple mounting parts 5. The spring 11 in the telescopic hole 15 pushes the connecting block 9 to insert into the connecting hole 7 on the side wall of the airdrop box 2. The airdrop box 2 is supported by the connecting block 9. At the same time, when airdropping, the electromagnet 13 is activated to attract and fix the magnetic metal plate 12 on the slide rod 16, thereby causing the connecting block 9 to retract into the telescopic hole 15, which facilitates the support of the airdrop box 2. The electromagnet 13 is powered only when the airdrop box 2 is released, which greatly reduces the power consumption of the electromagnet 13 and the transportation burden of the drone.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. The anti-shaking fixing frame of the unmanned aerial vehicle air-drop device, the anti-shaking fixing frame of the unmanned aerial vehicle air-drop device comprises an unmanned aerial vehicle main body (1) and a bottom plate (6) which is detachably fixed at the bottom end of the unmanned aerial vehicle main body (1), characterized in that, A plurality of connecting rods (8) are fixed on the bottom plate (6) in a rectangular array, the top end of the connecting rod (8) is fixed with a fastening plate (4) clamped with the top end of the unmanned aerial vehicle body (1), and the bottom end of the connecting rod (8) is fixed with a mounting portion (5), a plurality of the mounting portions (5) are inserted and connected with the airdrop box (2), and the side wall of the mounting portion (5) is elastically inserted and connected with the connecting block (9) clamped with the airdrop box (2).

2. The anti-shaking fixing frame for the UAV airdrop device according to claim 1, characterized in that, The bottom end surface of the unmanned aerial vehicle body (1) is fixed with a support seat (3) on both sides, and the top end of the fastening plate (4) is fixed with a clamping portion (14) abutting against the top end of the unmanned aerial vehicle body (1).

3. The anti-shaking fixing frame for the UAV airdrop device according to claim 1, characterized in that, The side wall of the airdrop box (2) is provided with a plurality of connecting holes (7) in a rectangular array at the top end, and one end of the connecting block (9) extending from the mounting portion (5) is inserted and connected in the connecting hole (7).

4. The anti-shaking fixing frame for the UAV airdrop device according to claim 3, characterized in that, One end of the mounting portion (5) is provided with an expansion hole (15), and the other end of the mounting portion (5) is embedded with an electromagnet (13).

5. The anti-shaking fixing frame for the UAV airdrop device according to claim 4, characterized in that, The mounting portion (5) is slidingly inserted in the expansion hole (15), and the mounting portion (5) is fixed with an anti-dropping portion (10) abutting against the inner wall of the expansion hole (15).

6. The anti-shaking fixing frame for the UAV airdrop device according to claim 5, characterized in that, The expansion hole (15) is embedded with a spring (11), and the side wall of the anti-dropping portion (10) is fixedly provided with a sliding rod (16).

7. The anti-shaking fixing frame for the UAV airdrop device according to claim 6, characterized in that, The sliding rod (16) is embedded in the spring (11), and the side wall of the sliding rod (16) is fixed with a magnetic metal plate (12) attracted by the electromagnet (13).

Citation Information

Patent Citations

  • Unmanned aerial vehicle air-drop device

    CN222272346U